Answer:
the incremental net income from reworking the units would be $8,900
Step-by-step explanation:
Consider the incremental costs and revenues arising on reworking the units
Note : Manufacturing costs already incurred on the defective units are sunk costs and are therefore irrelevant for this decision.
Sales (1,000×$11.10) $11,100
Less Costs to of reworking (1,000×$2.20) ($2,200)
Net Income $8,900
Therefore, the incremental net income from reworking the units would be $8,900